<!DOCTYPE html>
<html>
<head>
	<title></title>
	<style type="text/css">
		*{
			margin: 0px;
			padding: 0px;
		}
		#nav,#nav  li{
			display: block;
			list-style: none;
		}
		#nav{
			height: 40px;
			background-color: #006688;
			color: white;
		}
		#nav li{
			width:100px;
			float: left;

		}
		#nav a{
			display: block;
			width: 100px;
			text-align: center;
			color: white;
			line-height: 40px;
			text-decoration: none;
		}
		#nav a:hover{
			background-color: #661122;
		}




	</style>
</head>
<body>

<ul id='nav'>
	<li><a href='http://www.baidu.com'>百度</a></li>
	<li><a href='http://www.baidu.com'>百度</a></li>
	<li><a href='http://www.baidu.com'>百度</a></li>
	<li><a href='http://www.baidu.com'>百度</a></li>
	<li><a href='http://www.baidu.com'>百度</a></li>
	<li><a href='http://www.baidu.com'>百度</a></li>
</ul>

</body>
</html>